Volume 10, Issue 1, June 2001, Pages 41-48
Mortada El-Sayed; Hanan El-Nahas
Volume 7, Issue 1, June 1998, Pages 73-79
Mortada El-Sayed
Volume 6, Issue 2, December 1997, Pages 1-6
Mortada El-Sayed
Volume 4, Issue 2, December 1995, Pages 143-146
Mortada El-Sayed
Volume 2, Issue 2, December 1993, Pages 92-102
Mortada El-Sayed